Electrotherapeutic machine



Dec. 24, 1929. K. STOYE 1,740,963

ELECTROTIHERAPEUTIC MACHINE Filed July 29, 1925 2 Sheets-Sheet 1 ATTORNEY Dec. 24, 1929. K. STOYE 1,740,963

ELECTROTHERAPEUTIC MACHINE I Filed y 2 1925 2 Sheets-Sheet 2 I a INVENTOR 30 ATTbRNiiY Patented Dec. 24, 1929 i UNITED STATES PATET. oFFic-E KURT STOYE, OF NEW YORK, N. Y.

ELECTROTHERAPEUTIC .MACI-IINE Application filed July 29, 1925. Serial No. 46,801.

The therapeutic value of faradic currents bodied; and Figure is a diagrammatical depends largely upon the manner in which showing of the series of reversed impulses as such currents are applied to the human body. they may be delivered by the apparatus.

In this respect the most important factors are Two separate induction coils or transform- 5 the regular spacing of the impulses and the ers T T are employed, and are each control- 5 sign thereof. An important use of such curlable and of normal induction coil type, havrent is for inducing involuntary muscular eX- ing each a tubular controller 1 adapted adercise. To this end, and to produce themost justably to inclose the core 2. Each inducbeneficial results a series of say ten impulses tion coil however, is provided with two exof one sign should be alternated with a secactly similar primary windings 3 and 4, and 0 0nd series of impulses of the opposite sign with a single secondary winding 5. The rewith a rest period between each two adjacent versal of sign is accomplished by the alterseries of impulses. The rest periods may be hating use of the two primary windings as slightly longer than the duration of each will hereinafter more fully be set forth.

5 series of impulses of either sign. It is by A simple circuit interrupter A comprises I some authorities considered desirable that the essentially a rotating member 6 normally time spacing of the series of impulses be 00- driven constantly in one direction by the ordinated with the pulse beats of the patient. worm 7 on the shaft 8, extending from an The object of the present invention is the electric motor 9 and controlled as to speed '20 provision of cheap, simple, easily controllaby a governor 10. A battery B consisting ble and foolproof apparatus for controllably preferably of two dry cells 6 12 supplies the delivering electrical impulses for use on the electric energy for therapeutic purposes. human body therapeutically in accordance One side of the, battery B is preferably with the above desiderata. More particulargrounded to the frameofthe apparatus 5 ly, it is the object of the present invention to through the control switch 11 as indicated by accomplish some or all of these desired results the ground G. A similar ground connection by the medium of a simple mechanical circuit is provided for the circuit interrupter A. interrupter; to subject such circuit interrupt- In its preferred embodiment the member. 6 is or to a simple speed control; and to effect the a disk rotating on a vertical axis, and carries 30 current reversals as to sign through the metwo sets'of contact projections, one a series so dium of a simple single contact circuit interof equally spaced projections 12, constitutrupter, and without the use of a reversing ing preferably a little less than of the answitch. gular extent of the disk and two diametrical- Other objects of the invention are to imly positioned single contacts 13 and 14:. Two 5 prove in general a therapeutic apparatus for diagrammatically positioned contact fingers home use in the application of faradic cur- 1 5 and 16 are adapted to co-operate oneat a rents and will be more particularly pointed time with the series of projections 12; One out in the accompanying claims which are intermediate contact finger 17 is adapted to directed to the illustrative embodiment of the co-operate solely with the single contacts 13 invention described in the following specior 14. .For the contact finger 15, the circuit fication in connection with the accompanying through the induction coils from battery B drawings, but merely for the purposes of may be traced as follows: illustration and not of limitation. Battery B, switch 11, ground G, ground 7 In the drawings, Figure 1 is a plan view of G projections 12, finger 15, wire 20, primary 45 the completed apparatus; Fi ure 2 is a vertiwinding 4 oftransformer T wire 21, prical section through line II%I of Figure 1; mary winding 4 of transformer T wire 22 Figure 3 is a circuit diagram, showing the back to battery B. The circuit for contact associated electrical apparatus also diagramfinger 16 is traced as follows: I matically; Figure 4 is a rear view of'the Battery B, switch 11, round G, ground G 59 functioning apparatus as preferably emprojections 12, contact finger 16,w1re 23, primary winding 3 of transformer T wire 241-,

primary Winding 3 of transformer T wire 22, back to battery B. In this circuit, the magnetizing direction of the current through coils 3 is opposite to the previous magnetizing direction of the current, through coils 1, so that in the one case the impulses delivered from the secondary terminals S S are first as indicated by 30 in Figure 5 and then as indicated by 31 in Figure 3, the series following the series 30 by the time interval indicated by the line 32.

The circuit for the tell-tale lamp L, may be traced as follows:

Battery B, switch 11, grounds G and G contacts 13 or 14: (one after the other), contact 17, wire 26 lamp L, wire 27, back to battery 13. Two flashes of the lamp L are therefore caused to be made for each rotation of the member 6 corresponding to the two sets of plus and minus impulses to be generated, so that by controlling the governor 10, the impulses may be synchronized with the patients pulse by synchronizing the light flashes with the patients pulse.

All the parts are preferably mounted within a convenient case C, and are preferably mounted directly upon an insulating panel 31, the potential controls 1 each projecting through the panel.

For convenience, the dry batteries Z2 and b may be fitted into a special compartment 32, and their electrodes may be connected directly to terminals 33, 3 1, 35 and 36, appropriately labeled Z and C to correspond with the carbon and zinc electrodes of the dry batteries, and so that no confusion in the mind of the users will be had. A permanent jumper 37 connects terminals 34 and 33 to give proper series connections for the dry cells.

The electric motor 9 may be energized in a convenient manner from the usual electric house service. 38 indicates a finger control for the governor 10, Which operates in the usual manner through a brake 39, engaging the disk 40. A cooling fan 41 is shown on the end of the shaft 8, while the shaft 8 runs in suitable bearings and may be flexibly coupled through the coupling 42 with the motor shaft 43. In the embodiment illustrated it is to be understood that the contact fingers 15 and 16 and 17 are each appropriately mounted upon insulating supports such as 45, 46 and 47. For simplicity of construction, the ground connection for the rotating disk 6 is made through its bearings for its shaft 44 in the frame 48. The contact fingers 15 and 16 are in a plane to cooperate with the projections or teeth 12, located along the periphery of the disk 6, and projecting axially and not radially outward. The contact tip of the contact linger 17 is in a plane axially separated from the plane of fingers 15 and 16, and corresponds with. the tips of the projections 13 and 14:.

What I claim and desire to secure by United States Letters Patent is 1. In combination in therapeutic apparatus a plurality of transformers each having two primary windings and a secondary winding; a source of electric energy; a rotating member; a series of make and break projections localized upon a part of the circumference of said rotating member; a plurality of contact fingers for cooperating with said rotating member and angularly positioned about the same; a plurality of relatively reversed circuits each including said source of energy, one of said contact fingers and one primary winding of each of said transformers; whereby said transformers are energized with a series of pulsations first of substantially one sign and then of substantially opposite sign, separated by a predetermined time interval.

2. In combination in therapeutic apparatus potential transforming means; a source of low potential electric energy; a single contact make and break device; a plurality of relatively reversed circuits, each including said source of energy said contact means and appropirate arts of said transforming means and capable of effecting the creation of series of high potential pulsations, one series being of substantially opposite sign to the other series.

KURT STOYE. 

